another seg fault

R=r OCL=31156 CL=31156

another seg fault
R=r OCL=31156 CL=31156
6bb3c48d · Ken Thompson · db312fa8 · 6bb3c48d
Commit 6bb3c48d authored Jul 04, 2009 by Ken Thompson
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walk.c src/cmd/gc/walk.c +2 -1

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--- a/src/cmd/gc/walk.c
+++ b/src/cmd/gc/walk.c
@@ -402,7 +402,8 @@ loop:
 			break;

 		case 1:
-			n->type = n->type->type->type;
+			if(n->type != T && n->type->type != T && n->type->type->type != T)
+				n->type = n->type->type->type;
 			break;
 		}